Life On Earth

By NaterTot
  • 3650 BCE

    Earliest Evidence of Life

  • Period: 3650 BCE to 550 BCE

    Precambrian Era

  • 2500 BCE

    First Photosynthetic/Autotrophic Bacteria Appear

  • 2200 BCE

    First Great Extinction

    Aerobic organisms come alive and bacteria producing oxygen affect the environment.
  • 1750 BCE

    First Eukaryotes

  • 650 BCE

    Sexual Reproduction Begins

  • 650 BCE

    Multicellular Life

  • 550 BCE

    Cambrian Explosion

  • Period: 550 BCE to 245 BCE

    Paleozoic Era

  • 505 BCE

    Marine Invertebrates

  • 438 BCE

    Second Great Extinction

    Fish Arrive
  • 408 BCE

    Land Plants Appear

  • 360 BCE

    Great Extinction III

    Amphibians appear
  • 286 BCE

    Reptilian Life Appears

  • 245 BCE

    The Fourth Great Extinction

    Seed plants appear
  • Period: 245 BCE to 66 BCE

    Mesozoic Era

  • 208 BCE

    A Fifth Great Extinction

    Mammals and dinosaurs appear
  • 144 BCE

    Primitive Birds Appear

  • 66 BCE

    Final Great Extinction

    rest in peace dinosaurs
  • Period: 66 BCE to

    Cenozoic Era

  • 60 BCE

    Primates Appear

  • 38 BCE

    Anthropoids Appear

  • 37 BCE

    Primitive Horses Appear

  • 1 BCE

    Humans Appear

  • 19

    Jesus's Date of Birth

  • Declaration of Independence

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